YARN-1891. Added documentation for NodeManager health-monitoring. Contributed by Varun Vasudev.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1582891 13f79535-47bb-0310-9956-ffa450edef68
MAPREDUCE-5810. Removed the faulty and failing streaming test TestStreamingTaskLog. Contributed by Akira Ajisaka.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1582896 13f79535-47bb-0310-9956-ffa450edef68
YARN-1017. Added documentation for ResourceManager Restart. (jianhe)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1582913 13f79535-47bb-0310-9956-ffa450edef68